Michael daley



(No Model.) MnDALEY.

HARROW. N0. 389,502. :Patented sept. 11, 1888.v

WITNESSES n INVEJVTOR N, Pneus, Pmwmmnpnef. wmmnm of Q UNITED' STATESPATENT OFFICE.

MICHAEL DALEY, on DE KALB, ILLINOIS, AssIGNoa To THE DALEY MANU-FACTURING COMPANY, or SAME PLACE.

l-lARRow.V

SPECIFICATION forming part of Letters Patent No. 389,502, datedSeptember 11, 1888.

Application filed March 20, 1888. Serial No. 267,859.

.To all whom it 71mg/ concern.-

Be it known that I, MICHAEL DALEY, a citizen of the United States, and aresident of De Kalb, in the county of De Kalb and State of Illinois,have invented certain new and useful Improvements in Harrows; and I dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, and to letters or figures of reference markedthereon, which form a part of this specification.

Figure 1 of the drawings is a representation of the invention, and is atop View thereof. Fig. 2 is a side view; and Figs. 3, 4, 5, and 6 aredetail views.

The invention relates to improvements in harrows; and it consists in theconstruction and novel combination of parts, as hereinafter set forth.

Referring to the drawings, A designates the tooth-bars, preferablyangular in cross-section, and B shows the barrow-teeth.

G is a socket having the square or angular opening a through its headportion adapted to fit closely over the angular bars A. The

' depending socket is interiorly threaded for a portion of its way, asat a', to engage the threaded end of the tooth. The section b of thesocket below its threaded portion is designed to embrace the roundedneck b of the tooth,.thus'protecting the tooth from direct strain uponthe first thread or weaker portion.

The main portion Vof the tooth is made angular, as shown, so that anordinary wrench may be used to turn the tooth and bring its upper endagainst the lower edge of the tooth-bar to clamp the sockets irmlythereon.

D represents double lever-arms, having the angular opening c near thecenter, throughwhich the tooth-bars pass. A set-screw, c', as shown,impinges upon the edge of the bar and holds the lever-arms in place.

E is the operating bar, transverse to the tooth-bars, `pivotallyconnected to the upper arms of the lever-arms D by a bolt, d, having asquared end, which passes through a square opening in the bar E, a roundopening in upper arm of the lever D, and through an opening in theclip-strap F, where it is provided with a thread and nut.

( No model.)

The bolt d by its squared portion is prevented from turning, and thelever-arm is adapted to turn on the bolt, which obviates the possibleloosening of the nut by friction.

The clip-strap F is provided near one end with a malleable-iron rivet,d', cast integral therewith, which is riveted within the open ing in thebar E forward of the pivot-bolt, and a strengthening-rib, e, is cast onthe outerface of the return portion of the clip-strap.

G is the draft-bar-connected to the lower arm of the double lever in asimilar manner to the bar E.' The draft-bar G' is similarly connected tothe tooth-bars near the opposite end. The lever-arm in this case,however, is not provided with the upper arm.

The draft-bars G and Gr have the upwardlyturned frontend, which permitsthem to be used as runners when it is desired to draw the harrow fromfield to field or along the road. When so used, 'the teeth are liftedfrom the ground, as hereinafter explained.

H is the hand-lever pivotally connected to the bars E G, as shown,provided with the detent e', for engaging the semicircular rack f. Therack f is rigidly attached at its ends to the bar E at equal distancesfrom the point where the hand-lever is pivoted to bar E.

The brace-rod I is rigidly secured to the bar E and stands at an anglethereto toits pivotal connection with the middle tooth-bar, theconnection being like the connections of the draftbar G. By means of theleverarms and connections the barrow-teeth may be adjusted vertically orat any desired angle with the ground. By throwing the lever H forwardthe teeth will be brought parallel tothe ground, allowing the draft-barsto come in contact with vthe tooth having the threaded end adapted toclamp the socket on the tooth-bar, substantially as specified.

2. rlhe socket having the angular' opening, the threaded portion, andthe section b, de-

, the ground, thus providing a means for trans- IOC signed to embracethe tooth below its threaded having the threaded end, the lever-arms,the portion, substantially as specified. setscrew, the bars E and G, theclip-straps 3. In combination with the tooth-bars, the having themalleable-iron rivets, the bolts, the lever-arms having the angularopening and hand-lever having the detent, and the rack, x5 5 thesetserew, substantial] y as specified. substantially as specified.

4. In a harrow, the clipstraps having near In testimony whereof Iaix mySignature in one end the integral malleable-iron rivet, subpresence oftwo witnesses.

stantially as specified. I MICHAEL DALEY.

5. In a harrow, the combination of the an- Witnesses: :o guiartooth-bars, the sockets having the angu- ELI B. GILBERT,

lar opening and the threaded portion, the teeth ABNER WOOD.

